Injection mold for processing new energy charging pile control module shell

Abstract

The utility model relates to a kind of injection mould of processing new energy charging pile control module shell, including upper die holder and lower die holder, upper die holder and lower die holder between being equipped with upper mould core and lower mould core, two mould cavities are symmetrically arranged between upper mould core and lower mould core, two insert posts are arranged on the upper end of lower mould core, one side insert piece is installed in the outer side of each insert post on the upper end of lower mould core, one transverse sliding main slider is installed in the front and rear sides of lower mould core on the upper end of lower die holder, two U-shaped cavities are formed in the side of each main slider close to insert post, one transverse sliding side slider is installed in the left and right sides of lower mould core on the upper end of lower die holder, spring is installed between the lower part of side slider and lower mould core, side slider one end and side insert piece are connected together, one limit bolt is screwed on the outer side of each side slider on the upper end of lower die holder.The utility model uses insert post and side insert piece combined structure, cooperate the multidirectional core-pulling of main / side slider, realizes the one-time forming of main chamber and side chamber.

Description

Technical Field

[0001] This utility model relates to the field of injection mold technology, and in particular to an injection mold for processing the shell of a new energy charging pile control module. Background Technology

[0002] With the rapid development of the new energy vehicle industry, the demand for new energy charging piles is increasing daily. As a core component of the charging pile, the quality of the charging pile control module's casing directly affects its protective performance and lifespan. The casing of new energy charging pile control modules is typically manufactured using plastic injection molding technology, such as... Figure 6-7 As shown, the charging pile control module housing includes a housing body 22. The housing body 22 has an "ear" 23 on each side of its top. Each "ear" 23 has a circular hole 25 and multiple recessed cutouts 24. The lower part of the housing body 22 has a cylindrical main chamber 26. A boss 29 is provided on the lower side of the housing body 22. The bottom of the boss 29 has a side chamber 27. Two notches 28 are formed in the middle of the outer side of the lower port of the side chamber 27. Due to the complex structure of the charging pile control module housing, multiple cutouts 24, notches 28, holes, and complex chamber structures need to be formed on the housing. The stress and deformation during ejection also need to be considered. This places high demands on the design and manufacturing of the injection mold. Currently, conventional injection molds cannot form the charging pile control module housing, requiring the design of entirely new matching molds. Summary of the Invention

[0003] The technical problem to be solved by this utility model is to provide an injection mold for processing the shell of the control module of new energy charging pile. It adopts a combination structure of insert and side insert, and with the multi-directional core pulling of the main / side slider, the main cavity and the side cavity are formed in one step. The forming concave surface at one end of the side slider is connected with the adjacent side insert. The forming concave surface assists in the forming of the boss, and the notch forming part at the bottom of the forming concave surface is used to assist in the forming of the notch.

[0004] The technical solution adopted by this utility model to solve its technical problem is as follows: An injection mold for processing the outer shell of a new energy charging pile control module is provided, including an upper mold base and a lower mold base. An upper mold core and a lower mold core are stacked vertically between the upper mold base and the lower mold base. Two mold cavities are symmetrically arranged between the upper mold core and the lower mold core. Two inserts are symmetrically arranged on the left and right sides of the upper end of the lower mold core. A side insert is installed on the outer side of each insert on the upper end of the lower mold core. A horizontally sliding main slider is installed on both the front and rear sides of the lower mold core on the upper end of the lower mold base. Each main slider has two U-shaped cavities on the side near the insert. The U-shaped cavities of the two main sliders are joined together to surround the insert and the side inserts. The upper end of the lower mold base is equipped with a horizontally sliding side slider on both the left and right sides of the lower mold core. A spring is installed between the lower part of the side slider and the lower mold core. One end of the side slider is provided with a forming concave surface that mates with the adjacent side insert. A notch forming part is provided in the middle of the bottom surface of the forming concave surface. A limiting bolt is screwed onto the upper end of the lower mold base on the outside of each side slider. The limiting bolt is arranged vertically.

[0005] As a supplement to the technical solution described in this utility model, a top plate assembly that can be raised and lowered is installed below the lower mold base. A central top rod is vertically installed in the middle of each insert post. Multiple edge top rods are evenly arranged around the central top rod inside each insert post. The lower ends of the central top rod and the lower ends of the edge top rods are fixedly connected to the top plate assembly. The upper ends of the central top rod and the upper ends of the edge top rods penetrate the upper surface of the insert post.

[0006] As a supplement to the technical solution described in this utility model, the lower end of the upper mold base is equipped with a first inclined guide post that is inclinedly inserted into the side slider and a second inclined guide post that is inclinedly inserted into the main slider.

[0007] As a supplement to the technical solution described in this utility model, an upper template is installed on the upper end of the upper mold base, and a sprue sleeve is provided on the upper template. A sprue flow channel is provided inside the upper mold core between each mold cavity and the sprue sleeve.

[0008] As a supplement to the technical solution described in this utility model, a plurality of forming protrusion inserts are inserted from top to bottom at the upper end of the upper mold core. The lower end of the forming protrusion inserts passes through the upper mold core and extends into the mold cavity. A mold core fixing plate is installed at the upper end of the upper mold core. The mold core fixing plate and the upper mold core are connected and fixed by fasteners. The forming protrusion inserts are fixed on the upper mold core by the mold core fixing plate.

[0009] Beneficial Effects: This utility model relates to an injection mold for processing the outer shell of a new energy charging pile control module, which has the following advantages: 1. It adopts a combination structure of inserts and side inserts, and with multi-directional core pulling of the main / side sliders, it realizes one-time molding of the main cavity and the side cavity. The molding concave surface at one end of the side slider is connected with the adjacent side insert. The molding concave surface assists in the forming of the boss, and the notch forming part at the bottom of the molding concave surface is used to assist in the forming of the notch; 2. The balanced ejection design of the center ejector and the edge ejector keeps the product ejection deformation within 0.1mm; 3. The replaceable design of the molding protrusion insert greatly reduces maintenance costs; 4. Under the combined action of the spring and the limit bolt, the side slider, after opening, rests against the side of the limit bolt and remains in place, which is convenient for subsequent mold re-closing; 5. The dual-cavity symmetrical layout design improves production efficiency by 80-90% compared with single-cavity molds, making it suitable for mass production. Attached Figure Description

[0010] Figure 1 This is a schematic diagram of the structure of this utility model;

[0011] Figure 2 This is a schematic diagram of the structure of the lower mold core and lower mold base described in this utility model;

[0012] Figure 3 This is a schematic diagram of the structure of the upper mold core and the upper mold base described in this utility model;

[0013] Figure 4 This is a schematic diagram of the structure of the lower mold core described in this utility model;

[0014] Figure 5 This is a schematic diagram of the side slider of this utility model;

[0015] Figure 6 This is a structural schematic diagram of the product manufactured under this utility model;

[0016] Figure 7 This is a schematic diagram of the product manufactured by this utility model from different angles.

[0017] Illustration: 1. Upper mold plate, 2. Upper mold core, 3. Upper mold base, 4. Lower mold core, 5. Lower mold base, 6. Insert, 7. Angled guide post one, 8. Side slider, 9. Limiting bolt, 10. Spring, 11. Side insert, 12. Edge ejector pin, 13. Center ejector pin, 14. Top plate assembly, 15. Main slider, 16. U-shaped cavity, 17. Angled guide post two, 18. Sprue sleeve, 19. Sprue runner, 20. Mold core fixing plate, 21. Molding protrusion insert, 22. Outer shell body, 23. Ear, 24. Hole, 25. Circular hole, 26. Main cavity, 27. Side cavity, 28. Notch, 29. Boss, 30. Molding concave surface, 31. Notch molding part. Detailed Implementation

[0018] The present invention will be further illustrated below with reference to specific embodiments. It should be understood that these embodiments are for illustrative purposes only and are not intended to limit the scope of the present invention. Furthermore, it should be understood that after reading the teachings of this invention, those skilled in the art can make various alterations or modifications to the present invention, and these equivalent forms also fall within the scope defined by the appended claims.

[0019] The present invention relates to an injection mold for processing the outer shell of a new energy charging pile control module, such as... Figure 1-7 As shown, the system includes an upper mold base 3 and a lower mold base 5. An upper mold core 2 and a lower mold core 4 are stacked between the upper mold base 3 and the lower mold base 5. Two mold cavities are symmetrically arranged between the upper mold core 2 and the lower mold core 4. Two inserts 6 are symmetrically arranged on the upper end of the lower mold core 4. A side insert 11 is installed on the outer side of each insert 6 at the upper end of the lower mold core 4. A horizontally sliding main slider 15 is installed on both the front and rear sides of the lower mold core 4 at the upper end of the lower mold base 5. Two U-shaped cavities 16 are formed on the side of each main slider 15 closest to the insert 6. The U-shaped cavities 16 of the two main sliders 15 are joined together. The insert 6 and the side insert 11 are surrounded. The upper end of the lower mold base 5 is equipped with a horizontally sliding side slider 8 on both the left and right sides of the lower mold core 4. A spring 10 is installed between the lower part of the side slider 8 and the lower mold core 4. One end of the side slider 8 is provided with a forming concave surface 30 that mates with the adjacent side insert 11. A notch forming part 31 is provided in the middle of the bottom surface of the forming concave surface 30. A limiting bolt 9 is screwed to the upper end of the lower mold base 5 on the outside of each side slider 8. The limiting bolt 9 is arranged vertically and is used to limit the maximum sliding distance of the side slider 8 to ensure the accuracy of the core pulling size.

[0020] A top plate assembly 14 that can be raised and lowered is installed below the lower mold base 5. A central push rod 13 is vertically installed in the middle of each insert 6. Multiple edge push rods 12 are evenly arranged around the central push rod 13 inside each insert 6. The lower ends of the central push rod 13 and the edge push rods 12 are fixedly connected to the top plate assembly 14. The upper ends of the central push rod 13 and the edge push rods 12 penetrate the upper surface of the insert 6. The number of edge push rods 12 is preferably 4-6.

[0021] The lower end of the upper mold base 3 is equipped with a first inclined guide post 7, which is inclinedly inserted into the side slider 8, and a second inclined guide post 17, which is inclinedly inserted into the main slider 15. Both the first inclined guide post 7 and the second inclined guide post 17 are made of bearing steel and have undergone carburizing and quenching treatment, achieving a surface hardness of HRC60-HRC62, thus exhibiting high wear resistance and strength. The inclination angle of the inclined guide post is 15°-25°, which is determined based on the slider stroke and the overall structure of the mold, ensuring that the inclined guide post can smoothly and reliably drive the slider movement during mold closing and opening.

[0022] The upper mold base 3 is equipped with an upper template 1, and a sprue sleeve 18 is provided on the upper template 1. The sprue sleeve 18 and the upper template 1 are connected by a flange. The upper mold core 2 is provided with a sprue flow channel 19 between each mold cavity and the sprue sleeve 18. This ensures that the feeding speed and feeding amount of the two mold cavities are consistent, with a deviation of no more than 5%, and guarantees the consistency of the quality of the two molded shells.

[0023] Multiple shaped protrusions 21 are inserted from top to bottom into the upper mold core 2. The lower ends of the shaped protrusions 21 pass through the upper mold core 2 and extend into the mold cavity. A mold core fixing plate 20 is installed on the upper end of the upper mold core 2. The mold core fixing plate 20 is connected and fixed to the upper mold core 2 by fasteners. The shaped protrusions 21 are fixed on the upper mold core 2 by the mold core fixing plate 20. The specific number of shaped protrusions 21 is determined according to the hole positions and the number of cutouts 24 on the outer shell of the new energy charging pile control module.

[0024] The outer shell body 22 has an ear 23 on each side of its top. Each ear 23 has a circular hole 25 and multiple recessed cutouts 24. The lower part of the outer shell body 22 has a cylindrical main chamber 26. The lower side of the outer shell body 22 has a boss 29. The bottom of the boss 29 has a side chamber 27. The lower port of the side chamber 27 has two notches 28 in the middle of its outer side. Due to the complex structure of the charging pile control module shell, multiple cutouts 24, notches 28, holes and complex chamber structures need to be formed on the shell, which puts high requirements on the design and manufacturing of the injection mold.

[0025] The working process of injection molds is as follows:

[0026] 1. Mold closing: The upper mold base 3 drives the upper mold core 2 to move downward. The first inclined guide post 7 and the second inclined guide post 17 drive the side slider 8 and the main slider 15 to slide inward until the upper mold core 2 and the lower mold core 4 are tightly fitted together, completing the mold closing. The U-shaped cavities 16 of the two main sliders 15 are spliced ​​together to surround the insert 6 and the side insert 11. The forming concave surface 30 at one end of the side slider 8 is connected to the adjacent side insert 11. The forming concave surface 30 assists the boss 29 in forming. The notch forming part 31 at the bottom of the forming concave surface 30 is used to assist the forming of the notch 28.

[0027] 2. Injection molding: The injection molding machine injects molten plastic into the gating channel 19 through the sprue sleeve 18. The plastic enters the two mold cavities through the gating channel 19 and is then held under pressure and cooled after filling the mold cavities.

[0028] 3. Mold opening: The upper mold base 3 drives the upper mold core 2 to move upward. The first inclined guide post 7 and the second inclined guide post 17 move upward with the upper mold base 3, respectively controlling the side slider 8 and the main slider 15 to open, realizing the core pulling action until the upper mold core 2 and the lower mold core 4 are completely separated. Under the combined action of the spring 10 and the limit bolt 9, the side slider 8 is made to rest against the side of the limit bolt 9 after opening and remain in a fixed position, which is convenient for subsequent mold re-closing.

[0029] 4. Ejection: The top plate assembly 14 drives the central ejector rod 13 and the edge ejector rod 12 to move upward, ejecting the formed outer shell body 22 from the insert 6. After the product is removed, the top plate assembly 14 drives the central ejector rod 13 and the edge ejector rod 12 to reset, completing one work cycle.

[0030] This utility model has the following advantages: 1. It adopts a combination structure of insert 6 and side insert 11, and with the multi-directional core pulling of the main / side slider, it realizes the one-time molding of the main cavity 26 and the side cavity 27. The molding concave surface 30 at one end of the side slider 8 is connected with the adjacent side insert 11. The molding concave surface 30 assists in the molding of the boss 29. The notch molding part 31 at the bottom of the molding concave surface 30 is used to assist in the molding of the notch 28; 2. The balanced ejection design of the center ejector 13 and the edge ejector 12 keeps the product ejection deformation within 0.1mm; 3. The replaceable design of the molding protrusion insert 21 greatly reduces maintenance costs; 4. Under the joint action of the spring 10 and the limiting bolt 9, the side slider 8, after being opened, rests against the side of the limiting bolt 9 and remains in place, which is convenient for subsequent re-molding; 5. The double-cavity symmetrical layout design improves production efficiency by 80-90% compared with the single-cavity mold, and is suitable for mass production.

[0031] In the description of this utility model, it should be understood that the directional terms such as "front, back, up, down, left, right", "horizontal, vertical, horizontal" and "top, bottom" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description. Unless otherwise stated, these directional terms do not indicate or imply that the device or element referred to must have a specific orientation or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation on the scope of protection of this utility model. The directional terms "inner" and "outer" refer to the inner and outer contours of each component itself.

[0032] For ease of description, spatial relative terms such as "above," "on top of," "on the upper surface of," "above," etc., are used herein to describe the spatial positional relationship of a device or feature as shown in the figures to other devices or features. It should be understood that spatial relative terms are intended to encompass different orientations in use or operation beyond the orientation of the device as described in the figures. For example, if the device in the figures were inverted, a device described as "above" or "on top of" other devices or structures would subsequently be positioned as "below" or "under" other devices or structures. Thus, the exemplary term "above" can include both "above" and "below." The device may also be positioned in other different ways (rotated 90 degrees or in other orientations), and the spatial relative descriptions used herein will be interpreted accordingly.

[0033] Furthermore, it should be noted that the use of terms such as "first" and "second" to define components is merely for the purpose of distinguishing the corresponding components. Unless otherwise stated, the above terms have no special meaning and therefore cannot be construed as limiting the scope of protection of this utility model.

[0034] The above provides a detailed description of an injection mold for processing the housing of a new energy charging pile control module provided in this application. Specific examples have been used to illustrate the principles and implementation methods of this application. The description of the above embodiments is only for the purpose of helping to understand the method and core ideas of this application. At the same time, for those skilled in the art, there will be changes in the specific implementation methods and application scope based on the ideas of this application. Therefore, the content of this specification should not be construed as a limitation of this application.

Claims

1. An injection mold for processing the housing of a control module for a new energy charging pile, comprising an upper mold base (3) and a lower mold base (5), wherein an upper mold core (2) and a lower mold core (4) are stacked vertically between the upper mold base (3) and the lower mold base (5), and two mold cavities are symmetrically arranged between the upper mold core (2) and the lower mold core (4), characterized in that: The lower mold core (4) has two symmetrically arranged inserts (6) on its upper end. Each insert (6) has a side insert (11) installed on its upper end on the outer side of the upper end of the lower mold core (4). The lower mold base (5) has a horizontally sliding main slider (15) installed on both the front and rear sides of the lower mold core (4). Each main slider (15) has two U-shaped cavities (16) on the side closest to the insert (6). The U-shaped cavities (16) of the two main sliders (15) are joined together to surround the insert (6) and the side inserts (11). The lower mold base (5) is equipped with a horizontally sliding side slider (8) on both the left and right sides of the lower mold core (4). A spring (10) is installed between the lower part of the side slider (8) and the lower mold core (4). One end of the side slider (8) is provided with a forming concave surface (30) that mates with the adjacent side insert (11). A notch forming part (31) is provided in the middle of the bottom surface of the forming concave surface (30). A limiting bolt (9) is screwed onto the outer side of each side slider (8) at the upper end of the lower mold base (5). The limiting bolt (9) is arranged vertically.

2. The injection mold for processing the housing of a new energy charging pile control module according to claim 1, characterized in that: The lower mold base (5) is equipped with a top plate assembly (14) that can be raised and lowered. A central push rod (13) is vertically installed in the middle of each insert (6). Multiple edge push rods (12) are evenly arranged around the central push rod (13) inside each insert (6). The lower ends of the central push rod (13) and the edge push rods (12) are fixedly connected to the top plate assembly (14). The upper ends of the central push rod (13) and the edge push rods (12) penetrate the upper surface of the insert (6).

3. The injection mold for processing the housing of a new energy charging pile control module according to claim 1, characterized in that: The lower end of the upper mold base (3) is equipped with an inclined guide post 1 (7) that is inclinedly inserted into the side slider (8) and an inclined guide post 2 (17) that is inclinedly inserted into the main slider (15).

4. The injection mold for processing the housing of a new energy charging pile control module according to claim 1, characterized in that: The upper mold base (3) is equipped with an upper template (1), and a sprue sleeve (18) is provided on the upper template (1). The upper mold core (2) is provided with a sprue flow channel (19) between each mold cavity and the sprue sleeve (18).

5. The injection mold for processing the housing of a new energy charging pile control module according to claim 1, characterized in that: Multiple forming protrusions (21) are inserted from top to bottom at the upper end of the upper mold core (2). The lower end of the forming protrusions (21) passes through the upper mold core (2) and extends into the mold cavity. A mold core fixing plate (20) is installed at the upper end of the upper mold core (2). The mold core fixing plate (20) and the upper mold core (2) are connected and fixed by fasteners. The forming protrusions (21) are fixed on the upper mold core (2) by the mold core fixing plate (20).

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